COTO TECHNOLOGY Coto B21C reed relay, high-frequency, Form C ball grid array (BGA) relay with integrated low pass filter is suitable for Automated Test Equipment (ATE) applications. The high-performance RF device provides two separately addressable and fully-shielded Form A channels. Pseudo Form C changeover mode is available by activating the appropriate channel coil. Each channel transmits signals from dc to 6GHz at -1dB and 12GHz at -3dB. Open switch isolation is -21dB at 1GHz.